Finding the Fourth Proportional to 9,223.72, 12,730.30 and 5,447.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,223.72 : 12,730.30 = 5,447.84 : x
2. Step 2: Convert to fraction form
   9,223.72/12,730.30 = 5,447.84/x
3. Step 3: Cross multiply
   9,223.72x = 12,730.30 × 5,447.84
4. Step 4: Simplify right side
   9,223.72x = 69,352,637.55
5. Step 5: Solve for x
   x = 69,352,637.55/9,223.72
6. Step 6: Final answer
   x = 7,518.94